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294946a2
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294946a2
编写于
7月 15, 2022
作者:
W
wade zhang
提交者:
GitHub
7月 15, 2022
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差异文件
Merge pull request #14924 from taosdata/docs/TD-17370-for-2.6
docs: update high-volume.md
上级
7eea70db
60a8970a
变更
17
显示空白变更内容
内联
并排
Showing
17 changed file
with
777 addition
and
248 deletion
+777
-248
docs/examples/java/src/main/java/com/taos/example/TestTableNotExits.java
...ava/src/main/java/com/taos/example/TestTableNotExits.java
+26
-0
docs/examples/java/src/main/java/com/taos/example/highvolume/DataBaseMonitor.java
...ain/java/com/taos/example/highvolume/DataBaseMonitor.java
+47
-0
docs/examples/java/src/main/java/com/taos/example/highvolume/FastWriteExample.java
...in/java/com/taos/example/highvolume/FastWriteExample.java
+1
-46
docs/examples/java/src/main/java/com/taos/example/highvolume/MockDataSource.java
...main/java/com/taos/example/highvolume/MockDataSource.java
+53
-0
docs/examples/java/src/main/java/com/taos/example/highvolume/ReadTask.java
...a/src/main/java/com/taos/example/highvolume/ReadTask.java
+1
-54
docs/examples/java/src/main/java/com/taos/example/highvolume/SQLWriter.java
.../src/main/java/com/taos/example/highvolume/SQLWriter.java
+12
-6
docs/examples/java/src/main/java/com/taos/example/highvolume/StmtWriter.java
...src/main/java/com/taos/example/highvolume/StmtWriter.java
+4
-0
docs/examples/java/src/main/java/com/taos/example/highvolume/WriteTask.java
.../src/main/java/com/taos/example/highvolume/WriteTask.java
+1
-3
docs/examples/java/src/main/resources/highvolume.drawio
docs/examples/java/src/main/resources/highvolume.drawio
+72
-0
docs/examples/java/src/main/resources/highvolume2.drawio
docs/examples/java/src/main/resources/highvolume2.drawio
+76
-0
docs/examples/java/src/main/resources/logback.xml
docs/examples/java/src/main/resources/logback.xml
+14
-0
docs/examples/python/fast_write_example.py
docs/examples/python/fast_write_example.py
+180
-0
docs/examples/python/mockdatasource.py
docs/examples/python/mockdatasource.py
+49
-0
docs/examples/python/sql_writer.py
docs/examples/python/sql_writer.py
+10
-1
docs/examples/python/stmt_writer.py
docs/examples/python/stmt_writer.py
+2
-0
docs/zh/07-develop/03-insert-data/05-high-volume.md
docs/zh/07-develop/03-insert-data/05-high-volume.md
+229
-138
docs/zh/07-develop/03-insert-data/highvolume.webp
docs/zh/07-develop/03-insert-data/highvolume.webp
+0
-0
未找到文件。
docs/examples/java/src/main/java/com/taos/example/TestTableNotExits.java
0 → 100644
浏览文件 @
294946a2
package
com.taos.example
;
import
java.sql.Connection
;
import
java.sql.DriverManager
;
import
java.sql.SQLException
;
import
java.sql.Statement
;
public
class
TestTableNotExits
{
private
static
Connection
getConnection
()
throws
SQLException
{
String
jdbcUrl
=
"jdbc:TAOS://localhost:6030?user=root&password=taosdata"
;
return
DriverManager
.
getConnection
(
jdbcUrl
);
}
public
static
void
main
(
String
[]
args
)
throws
SQLException
{
try
(
Connection
conn
=
getConnection
())
{
try
(
Statement
stmt
=
conn
.
createStatement
())
{
try
{
stmt
.
executeUpdate
(
"insert into test.t1 values(1, 2) test.t2 values(3, 4)"
);
}
catch
(
SQLException
e
)
{
System
.
out
.
println
(
e
.
getErrorCode
());
System
.
out
.
println
(
Integer
.
toHexString
(
e
.
getErrorCode
()));
System
.
out
.
println
(
e
);
}
}
}
}
}
docs/examples/java/src/main/java/com/taos/example/highvolume/DataBaseMonitor.java
0 → 100644
浏览文件 @
294946a2
package
com.taos.example.highvolume
;
import
java.sql.*
;
/**
* Prepare target database.
* Count total records in database periodically so that we can estimate the writing speed.
*/
public
class
DataBaseMonitor
{
private
Connection
conn
;
private
Statement
stmt
;
public
DataBaseMonitor
init
()
throws
SQLException
{
if
(
conn
==
null
)
{
String
jdbcURL
=
System
.
getenv
(
"TDENGINE_JDBC_URL"
);
conn
=
DriverManager
.
getConnection
(
jdbcURL
);
stmt
=
conn
.
createStatement
();
}
return
this
;
}
public
void
close
()
{
try
{
stmt
.
close
();
}
catch
(
SQLException
e
)
{
}
try
{
conn
.
close
();
}
catch
(
SQLException
e
)
{
}
}
public
void
prepareDatabase
()
throws
SQLException
{
stmt
.
execute
(
"DROP DATABASE IF EXISTS test"
);
stmt
.
execute
(
"CREATE DATABASE test"
);
stmt
.
execute
(
"CREATE STABLE test.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)"
);
}
public
Long
count
()
throws
SQLException
{
if
(!
stmt
.
isClosed
())
{
ResultSet
result
=
stmt
.
executeQuery
(
"SELECT count(*) from test.meters"
);
result
.
next
();
return
result
.
getLong
(
1
);
}
return
null
;
}
}
\ No newline at end of file
docs/examples/java/src/main/java/com/taos/example/highvolume/FastWriteExample.java
浏览文件 @
294946a2
...
@@ -9,51 +9,7 @@ import java.util.List;
...
@@ -9,51 +9,7 @@ import java.util.List;
import
java.util.concurrent.ArrayBlockingQueue
;
import
java.util.concurrent.ArrayBlockingQueue
;
import
java.util.concurrent.BlockingQueue
;
import
java.util.concurrent.BlockingQueue
;
/**
* Prepare target database.
* Count total records in database periodically so that we can estimate the writing speed.
*/
class
DataBaseMonitor
{
private
Connection
conn
;
private
Statement
stmt
;
public
DataBaseMonitor
init
()
throws
SQLException
{
if
(
conn
==
null
)
{
String
jdbcURL
=
System
.
getenv
(
"TDENGINE_JDBC_URL"
);
conn
=
DriverManager
.
getConnection
(
jdbcURL
);
stmt
=
conn
.
createStatement
();
}
return
this
;
}
public
void
close
()
{
try
{
stmt
.
close
();
}
catch
(
SQLException
e
)
{
}
try
{
conn
.
close
();
}
catch
(
SQLException
e
)
{
}
}
public
void
prepareDatabase
()
throws
SQLException
{
stmt
.
execute
(
"DROP DATABASE IF EXISTS test"
);
stmt
.
execute
(
"CREATE DATABASE test"
);
stmt
.
execute
(
"CREATE STABLE test.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)"
);
}
public
Long
count
()
throws
SQLException
{
if
(!
stmt
.
isClosed
())
{
ResultSet
result
=
stmt
.
executeQuery
(
"SELECT count(*) from test.meters"
);
result
.
next
();
return
result
.
getLong
(
1
);
}
return
null
;
}
}
// ANCHOR: main
public
class
FastWriteExample
{
public
class
FastWriteExample
{
final
static
Logger
logger
=
LoggerFactory
.
getLogger
(
FastWriteExample
.
class
);
final
static
Logger
logger
=
LoggerFactory
.
getLogger
(
FastWriteExample
.
class
);
...
@@ -111,4 +67,3 @@ public class FastWriteExample {
...
@@ -111,4 +67,3 @@ public class FastWriteExample {
}
}
}
}
}
}
\ No newline at end of file
// ANCHOR_END: main
\ No newline at end of file
docs/examples/java/src/main/java/com/taos/example/highvolume/MockDataSource.java
0 → 100644
浏览文件 @
294946a2
package
com.taos.example.highvolume
;
import
java.util.Iterator
;
/**
* Generate test data
*/
class
MockDataSource
implements
Iterator
{
private
String
tbNamePrefix
;
private
int
tableCount
;
private
long
maxRowsPerTable
=
1000000000L
;
// 100 milliseconds between two neighbouring rows.
long
startMs
=
System
.
currentTimeMillis
()
-
maxRowsPerTable
*
100
;
private
int
currentRow
=
0
;
private
int
currentTbId
=
-
1
;
// mock values
String
[]
location
=
{
"LosAngeles"
,
"SanDiego"
,
"Hollywood"
,
"Compton"
,
"San Francisco"
};
float
[]
current
=
{
8.8f
,
10.7f
,
9.9f
,
8.9f
,
9.4f
};
int
[]
voltage
=
{
119
,
116
,
111
,
113
,
118
};
float
[]
phase
=
{
0.32f
,
0.34f
,
0.33f
,
0.329f
,
0.141f
};
public
MockDataSource
(
String
tbNamePrefix
,
int
tableCount
)
{
this
.
tbNamePrefix
=
tbNamePrefix
;
this
.
tableCount
=
tableCount
;
}
@Override
public
boolean
hasNext
()
{
currentTbId
+=
1
;
if
(
currentTbId
==
tableCount
)
{
currentTbId
=
0
;
currentRow
+=
1
;
}
return
currentRow
<
maxRowsPerTable
;
}
@Override
public
String
next
()
{
long
ts
=
startMs
+
100
*
currentRow
;
int
groupId
=
currentTbId
%
5
==
0
?
currentTbId
/
5
:
currentTbId
/
5
+
1
;
StringBuilder
sb
=
new
StringBuilder
(
tbNamePrefix
+
"_"
+
currentTbId
+
","
);
// tbName
sb
.
append
(
ts
).
append
(
','
);
// ts
sb
.
append
(
current
[
currentRow
%
5
]).
append
(
','
);
// current
sb
.
append
(
voltage
[
currentRow
%
5
]).
append
(
','
);
// voltage
sb
.
append
(
phase
[
currentRow
%
5
]).
append
(
','
);
// phase
sb
.
append
(
location
[
currentRow
%
5
]).
append
(
','
);
// location
sb
.
append
(
groupId
);
// groupID
return
sb
.
toString
();
}
}
\ No newline at end of file
docs/examples/java/src/main/java/com/taos/example/highvolume/ReadTask.java
浏览文件 @
294946a2
...
@@ -7,57 +7,6 @@ import java.util.Iterator;
...
@@ -7,57 +7,6 @@ import java.util.Iterator;
import
java.util.List
;
import
java.util.List
;
import
java.util.concurrent.BlockingQueue
;
import
java.util.concurrent.BlockingQueue
;
/**
* Generate test data
*/
class
MockDataSource
implements
Iterator
{
private
String
tbNamePrefix
;
private
int
tableCount
;
private
long
maxRowsPerTable
=
1000000000L
;
// 100 milliseconds between two neighbouring rows.
long
startMs
=
System
.
currentTimeMillis
()
-
maxRowsPerTable
*
100
;
private
int
currentRow
=
0
;
private
int
currentTbId
=
-
1
;
// mock values
String
[]
location
=
{
"LosAngeles"
,
"SanDiego"
,
"Hollywood"
,
"Compton"
,
"San Francisco"
};
float
[]
current
=
{
8.8f
,
10.7f
,
9.9f
,
8.9f
,
9.4f
};
int
[]
voltage
=
{
119
,
116
,
111
,
113
,
118
};
float
[]
phase
=
{
0.32f
,
0.34f
,
0.33f
,
0.329f
,
0.141f
};
public
MockDataSource
(
String
tbNamePrefix
,
int
tableCount
)
{
this
.
tbNamePrefix
=
tbNamePrefix
;
this
.
tableCount
=
tableCount
;
}
@Override
public
boolean
hasNext
()
{
currentTbId
+=
1
;
if
(
currentTbId
==
tableCount
)
{
currentTbId
=
0
;
currentRow
+=
1
;
}
return
currentRow
<
maxRowsPerTable
;
}
@Override
public
String
next
()
{
long
ts
=
startMs
+
100
*
currentRow
;
int
groupId
=
currentTbId
%
5
==
0
?
currentTbId
/
5
:
currentTbId
/
5
+
1
;
StringBuilder
sb
=
new
StringBuilder
(
tbNamePrefix
+
"_"
+
currentTbId
+
","
);
// tbName
sb
.
append
(
ts
).
append
(
','
);
// ts
sb
.
append
(
current
[
currentRow
%
5
]).
append
(
','
);
// current
sb
.
append
(
voltage
[
currentRow
%
5
]).
append
(
','
);
// voltage
sb
.
append
(
phase
[
currentRow
%
5
]).
append
(
','
);
// phase
sb
.
append
(
location
[
currentRow
%
5
]).
append
(
','
);
// location
sb
.
append
(
groupId
);
// groupID
return
sb
.
toString
();
}
}
// ANCHOR: ReadTask
class
ReadTask
implements
Runnable
{
class
ReadTask
implements
Runnable
{
private
final
static
Logger
logger
=
LoggerFactory
.
getLogger
(
ReadTask
.
class
);
private
final
static
Logger
logger
=
LoggerFactory
.
getLogger
(
ReadTask
.
class
);
private
final
int
taskId
;
private
final
int
taskId
;
...
@@ -107,5 +56,3 @@ class ReadTask implements Runnable {
...
@@ -107,5 +56,3 @@ class ReadTask implements Runnable {
this
.
active
=
false
;
this
.
active
=
false
;
}
}
}
}
\ No newline at end of file
// ANCHOR_END: ReadTask
\ No newline at end of file
docs/examples/java/src/main/java/com/taos/example/highvolume/SQLWriter.java
浏览文件 @
294946a2
...
@@ -7,8 +7,6 @@ import java.sql.*;
...
@@ -7,8 +7,6 @@ import java.sql.*;
import
java.util.HashMap
;
import
java.util.HashMap
;
import
java.util.Map
;
import
java.util.Map
;
// ANCHOR: SQLWriter
/**
/**
* A helper class encapsulate the logic of writing using SQL.
* A helper class encapsulate the logic of writing using SQL.
* <p>
* <p>
...
@@ -154,10 +152,14 @@ public class SQLWriter {
...
@@ -154,10 +152,14 @@ public class SQLWriter {
if
(
errorCode
==
0x362
||
errorCode
==
0x218
)
{
if
(
errorCode
==
0x362
||
errorCode
==
0x218
)
{
// Table does not exist
// Table does not exist
createTables
();
createTables
();
stmt
.
executeUpdate
(
sql
);
executeSQL
(
sql
);
}
else
{
}
else
{
logger
.
error
(
"Execute SQL: {}"
,
sql
);
throw
e
;
throw
e
;
}
}
}
catch
(
Throwable
throwable
)
{
logger
.
error
(
"Execute SQL: {}"
,
sql
);
throw
throwable
;
}
}
}
}
...
@@ -174,7 +176,12 @@ public class SQLWriter {
...
@@ -174,7 +176,12 @@ public class SQLWriter {
sb
.
append
(
"IF NOT EXISTS "
).
append
(
tbName
).
append
(
" USING meters TAGS "
).
append
(
tagValues
).
append
(
" "
);
sb
.
append
(
"IF NOT EXISTS "
).
append
(
tbName
).
append
(
" USING meters TAGS "
).
append
(
tagValues
).
append
(
" "
);
}
}
String
sql
=
sb
.
toString
();
String
sql
=
sb
.
toString
();
try
{
stmt
.
executeUpdate
(
sql
);
stmt
.
executeUpdate
(
sql
);
}
catch
(
Throwable
throwable
)
{
logger
.
error
(
"Execute SQL: {}"
,
sql
);
throw
throwable
;
}
}
}
public
boolean
hasBufferedValues
()
{
public
boolean
hasBufferedValues
()
{
...
@@ -196,4 +203,3 @@ public class SQLWriter {
...
@@ -196,4 +203,3 @@ public class SQLWriter {
}
}
}
}
}
}
\ No newline at end of file
// ANCHOR_END: SQLWriter
docs/examples/java/src/main/java/com/taos/example/highvolume/StmtWriter.java
0 → 100644
浏览文件 @
294946a2
package
com.taos.example.highvolume
;
public
class
StmtWriter
{
}
docs/examples/java/src/main/java/com/taos/example/highvolume/WriteTask.java
浏览文件 @
294946a2
...
@@ -5,7 +5,6 @@ import org.slf4j.LoggerFactory;
...
@@ -5,7 +5,6 @@ import org.slf4j.LoggerFactory;
import
java.util.concurrent.BlockingQueue
;
import
java.util.concurrent.BlockingQueue
;
// ANCHOR: WriteTask
class
WriteTask
implements
Runnable
{
class
WriteTask
implements
Runnable
{
private
final
static
Logger
logger
=
LoggerFactory
.
getLogger
(
WriteTask
.
class
);
private
final
static
Logger
logger
=
LoggerFactory
.
getLogger
(
WriteTask
.
class
);
private
final
int
maxBatchSize
;
private
final
int
maxBatchSize
;
...
@@ -57,4 +56,3 @@ class WriteTask implements Runnable {
...
@@ -57,4 +56,3 @@ class WriteTask implements Runnable {
this
.
active
=
false
;
this
.
active
=
false
;
}
}
}
}
\ No newline at end of file
// ANCHOR_END: WriteTask
\ No newline at end of file
docs/examples/java/src/main/resources/highvolume.drawio
0 → 100644
浏览文件 @
294946a2
<mxfile host="65bd71144e">
<diagram id="_BjMg4p5x31hL4Gv-87s" name="第 1 页">
<mxGraphModel dx="862" dy="672" grid="0" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="900" pageHeight="900" background="none" math="0" shadow="0">
<root>
<mxCell id="0"/>
<mxCell id="1" parent="0"/>
<mxCell id="13" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=17;" parent="1" source="7" edge="1">
<mxGeometry relative="1" as="geometry">
<mxPoint x="260" y="150" as="targetPoint"/>
</mxGeometry>
</mxCell>
<mxCell id="7" value="<font style="font-size: 14px">Read Task 1</font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
<mxGeometry x="60" y="160" width="100" height="40" as="geometry"/>
</mxCell>
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<mxCell id="18" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;fontSize=17;" parent="1" source="8" target="11" edge="1">
<mxGeometry relative="1" as="geometry"/>
</mxCell>
<mxCell id="8" value="<font style="font-size: 14px"><font style="font-size: 14px">Read Tas</font><font style="font-size: 14px">k 2</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
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<mxGeometry relative="1" as="geometry"/>
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<mxCell id="9" value="Queue 1" style="rounded=0;whiteSpace=wrap;html=1;fontSize=17;fillColor=#f8cecc;strokeColor=#b85450;" parent="1" vertex="1">
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</mxCell>
<mxCell id="24" value="" style="edgeStyle=none;html=1;fontSize=14;" parent="1" source="10" target="21" edge="1">
<mxGeometry relative="1" as="geometry"/>
</mxCell>
<mxCell id="10" value="Queue 2" style="rounded=0;whiteSpace=wrap;html=1;fontSize=17;fillColor=#f8cecc;strokeColor=#b85450;" parent="1" vertex="1">
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</mxCell>
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<mxGeometry relative="1" as="geometry"/>
</mxCell>
<mxCell id="11" value="Queue 3" style="rounded=0;whiteSpace=wrap;html=1;fontSize=17;fillColor=#f8cecc;strokeColor=#b85450;" parent="1" vertex="1">
<mxGeometry x="265" y="280" width="245" height="30" as="geometry"/>
</mxCell>
<mxCell id="14" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=17;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="7" target="10" edge="1">
<mxGeometry relative="1" as="geometry">
<mxPoint x="270" y="160" as="targetPoint"/>
<mxPoint x="180" y="195" as="sourcePoint"/>
</mxGeometry>
</mxCell>
<mxCell id="15" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=17;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="7" target="11" edge="1">
<mxGeometry relative="1" as="geometry">
<mxPoint x="280" y="170" as="targetPoint"/>
<mxPoint x="190" y="205" as="sourcePoint"/>
</mxGeometry>
</mxCell>
<mxCell id="17" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=-0.033;entryY=0.65;entryDx=0;entryDy=0;fontSize=17;entryPerimeter=0;" parent="1" source="8" target="10" edge="1">
<mxGeometry relative="1" as="geometry">
<mxPoint x="180" y="285" as="sourcePoint"/>
<mxPoint x="275" y="162.5" as="targetPoint"/>
</mxGeometry>
</mxCell>
<mxCell id="20" value="<font style="font-size: 14px"><font style="font-size: 14px">Write Tas</font><font style="font-size: 14px">k 2</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
<mxGeometry x="600" y="125" width="100" height="40" as="geometry"/>
</mxCell>
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<mxCell id="22" value="<font style="font-size: 14px"><font style="font-size: 14px">Write Tas</font><font style="font-size: 14px">k 3</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
<mxGeometry x="600" y="275" width="100" height="40" as="geometry"/>
</mxCell>
</root>
</mxGraphModel>
</diagram>
</mxfile>
\ No newline at end of file
docs/examples/java/src/main/resources/highvolume2.drawio
0 → 100644
浏览文件 @
294946a2
<mxfile host="65bd71144e">
<diagram id="_BjMg4p5x31hL4Gv-87s" name="第 1 页">
<mxGraphModel dx="1259" dy="615" grid="0" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="900" pageHeight="900" background="none" math="0" shadow="0">
<root>
<mxCell id="0"/>
<mxCell id="1" parent="0"/>
<mxCell id="13" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=17;" parent="1" source="7" edge="1">
<mxGeometry relative="1" as="geometry">
<mxPoint x="260" y="150" as="targetPoint"/>
</mxGeometry>
</mxCell>
<mxCell id="7" value="<font style="font-size: 14px">Read Task 1</font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
<mxGeometry x="60" y="160" width="100" height="37" as="geometry"/>
</mxCell>
<mxCell id="18" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=17;" parent="1" source="8" edge="1">
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<mxPoint x="264" y="292" as="targetPoint"/>
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</mxCell>
<mxCell id="8" value="<font style="font-size: 14px"><font style="font-size: 14px">Read Tas</font><font style="font-size: 14px">k 2</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
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<mxGeometry relative="1" as="geometry"/>
</mxCell>
<mxCell id="9" value="Queue 1" style="rounded=0;whiteSpace=wrap;html=1;fontSize=17;fillColor=#f8cecc;strokeColor=#b85450;" parent="1" vertex="1">
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</mxCell>
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</mxCell>
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</mxCell>
<mxCell id="14" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;fontSize=17;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="7" target="11" edge="1">
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</mxCell>
<mxCell id="21" value="<font style="font-size: 14px"><font style="font-size: 14px">Write Tas</font><font style="font-size: 14px">k 2</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
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</mxCell>
<mxCell id="30" style="edgeStyle=none;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="26" target="29" edge="1">
<mxGeometry relative="1" as="geometry"/>
</mxCell>
<mxCell id="26" value="Queue 4" style="rounded=0;whiteSpace=wrap;html=1;fontSize=17;fillColor=#f8cecc;strokeColor=#b85450;" parent="1" vertex="1">
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</mxCell>
<mxCell id="28" value="<font style="font-size: 14px"><font style="font-size: 14px">Write Tas</font><font style="font-size: 14px">k 3</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
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</mxCell>
<mxCell id="29" value="<font style="font-size: 14px"><font style="font-size: 14px">Write Tas</font><font style="font-size: 14px">k 4</font></font>" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontStyle=1" parent="1" vertex="1">
<mxGeometry x="588" y="271" width="100" height="33" as="geometry"/>
</mxCell>
</root>
</mxGraphModel>
</diagram>
</mxfile>
\ No newline at end of file
docs/examples/java/src/main/resources/logback.xml
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<configuration>
<appender
name=
"STDOUT"
class=
"ch.qos.logback.core.ConsoleAppender"
>
<!-- encoders are assigned the type
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
<encoder>
<pattern>
%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root
level=
"debug"
>
<appender-ref
ref=
"STDOUT"
/>
</root>
</configuration>
\ No newline at end of file
docs/examples/python/fast_write_example.py
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294946a2
# install dependencies:
# recommend python >= 3.8
# pip3 install faster-fifo
#
import
logging
import
math
import
sys
import
time
import
os
from
multiprocessing
import
Process
from
faster_fifo
import
Queue
from
mockdatasource
import
MockDataSource
from
queue
import
Empty
from
typing
import
List
logging
.
basicConfig
(
stream
=
sys
.
stdout
,
level
=
logging
.
DEBUG
,
format
=
"%(asctime)s [%(name)s] - %(message)s"
)
READ_TASK_COUNT
=
1
WRITE_TASK_COUNT
=
1
TABLE_COUNT
=
1000
QUEUE_SIZE
=
1000000
MAX_BATCH_SIZE
=
3000
read_processes
=
[]
write_processes
=
[]
def
get_connection
():
"""
If variable TDENGINE_FIRST_EP is provided then it will be used. If not, firstEP in /etc/taos/taos.cfg will be used.
You can also override the default username and password by supply variable TDENGINE_USER and TDENGINE_PASSWORD
"""
import
taos
firstEP
=
os
.
environ
.
get
(
"TDENGINE_FIRST_EP"
)
if
firstEP
:
host
,
port
=
firstEP
.
split
(
":"
)
else
:
host
,
port
=
None
,
0
user
=
os
.
environ
.
get
(
"TDENGINE_USER"
,
"root"
)
password
=
os
.
environ
.
get
(
"TDENGINE_PASSWORD"
,
"taosdata"
)
return
taos
.
connect
(
host
=
host
,
port
=
int
(
port
),
user
=
user
,
password
=
password
)
# ANCHOR: read
def
run_read_task
(
task_id
:
int
,
task_queues
:
List
[
Queue
]):
table_count_per_task
=
TABLE_COUNT
//
READ_TASK_COUNT
data_source
=
MockDataSource
(
f
"tb
{
task_id
}
"
,
table_count_per_task
)
try
:
for
batch
in
data_source
:
for
table_id
,
rows
in
batch
:
# hash data to different queue
i
=
table_id
%
len
(
task_queues
)
# block putting forever when the queue is full
task_queues
[
i
].
put_many
(
rows
,
block
=
True
,
timeout
=-
1
)
except
KeyboardInterrupt
:
pass
# ANCHOR_END: read
# ANCHOR: write
def
run_write_task
(
task_id
:
int
,
queue
:
Queue
):
from
sql_writer
import
SQLWriter
log
=
logging
.
getLogger
(
f
"WriteTask-
{
task_id
}
"
)
writer
=
SQLWriter
(
get_connection
)
lines
=
None
try
:
while
True
:
try
:
# get as many as possible
lines
=
queue
.
get_many
(
block
=
False
,
max_messages_to_get
=
MAX_BATCH_SIZE
)
writer
.
process_lines
(
lines
)
except
Empty
:
time
.
sleep
(
0.01
)
except
KeyboardInterrupt
:
pass
except
BaseException
as
e
:
log
.
debug
(
f
"lines=
{
lines
}
"
)
raise
e
# ANCHOR_END: write
def
set_global_config
():
argc
=
len
(
sys
.
argv
)
if
argc
>
1
:
global
READ_TASK_COUNT
READ_TASK_COUNT
=
int
(
sys
.
argv
[
1
])
if
argc
>
2
:
global
WRITE_TASK_COUNT
WRITE_TASK_COUNT
=
int
(
sys
.
argv
[
2
])
if
argc
>
3
:
global
TABLE_COUNT
TABLE_COUNT
=
int
(
sys
.
argv
[
3
])
if
argc
>
4
:
global
QUEUE_SIZE
QUEUE_SIZE
=
int
(
sys
.
argv
[
4
])
if
argc
>
5
:
global
MAX_BATCH_SIZE
MAX_BATCH_SIZE
=
int
(
sys
.
argv
[
5
])
# ANCHOR: monitor
def
run_monitor_process
():
log
=
logging
.
getLogger
(
"DataBaseMonitor"
)
conn
=
get_connection
()
conn
.
execute
(
"DROP DATABASE IF EXISTS test"
)
conn
.
execute
(
"CREATE DATABASE test"
)
conn
.
execute
(
"CREATE STABLE test.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) "
"TAGS (location BINARY(64), groupId INT)"
)
def
get_count
():
res
=
conn
.
query
(
"SELECT count(*) FROM test.meters"
)
rows
=
res
.
fetch_all
()
return
rows
[
0
][
0
]
if
rows
else
0
last_count
=
0
while
True
:
time
.
sleep
(
10
)
count
=
get_count
()
log
.
info
(
f
"count=
{
count
}
speed=
{
(
count
-
last_count
)
/
10
}
"
)
last_count
=
count
# ANCHOR_END: monitor
# ANCHOR: main
def
main
():
set_global_config
()
logging
.
info
(
f
"READ_TASK_COUNT=
{
READ_TASK_COUNT
}
, WRITE_TASK_COUNT=
{
WRITE_TASK_COUNT
}
, "
f
"TABLE_COUNT=
{
TABLE_COUNT
}
, QUEUE_SIZE=
{
QUEUE_SIZE
}
, MAX_BATCH_SIZE=
{
MAX_BATCH_SIZE
}
"
)
monitor_process
=
Process
(
target
=
run_monitor_process
)
monitor_process
.
start
()
time
.
sleep
(
3
)
# waiting for database ready.
task_queues
:
List
[
Queue
]
=
[]
# create task queues
for
i
in
range
(
WRITE_TASK_COUNT
):
queue
=
Queue
(
max_size_bytes
=
QUEUE_SIZE
)
task_queues
.
append
(
queue
)
# create write processes
for
i
in
range
(
WRITE_TASK_COUNT
):
p
=
Process
(
target
=
run_write_task
,
args
=
(
i
,
task_queues
[
i
]))
p
.
start
()
logging
.
debug
(
f
"WriteTask-
{
i
}
started with pid
{
p
.
pid
}
"
)
write_processes
.
append
(
p
)
# create read processes
for
i
in
range
(
READ_TASK_COUNT
):
queues
=
assign_queues
(
i
,
task_queues
)
p
=
Process
(
target
=
run_read_task
,
args
=
(
i
,
queues
))
p
.
start
()
logging
.
debug
(
f
"ReadTask-
{
i
}
started with pid
{
p
.
pid
}
"
)
read_processes
.
append
(
p
)
try
:
monitor_process
.
join
()
except
KeyboardInterrupt
:
monitor_process
.
terminate
()
[
p
.
terminate
()
for
p
in
read_processes
]
[
p
.
terminate
()
for
p
in
write_processes
]
[
q
.
close
()
for
q
in
task_queues
]
def
assign_queues
(
read_task_id
,
task_queues
):
"""
Compute target queues for a specific read task.
"""
ratio
=
WRITE_TASK_COUNT
/
READ_TASK_COUNT
from_index
=
math
.
floor
(
read_task_id
*
ratio
)
end_index
=
math
.
ceil
((
read_task_id
+
1
)
*
ratio
)
return
task_queues
[
from_index
:
end_index
]
if
__name__
==
'__main__'
:
main
()
# ANCHOR_END: main
docs/examples/python/mockdatasource.py
0 → 100644
浏览文件 @
294946a2
import
time
class
MockDataSource
:
samples
=
[
"8.8,119,0.32,LosAngeles,0"
,
"10.7,116,0.34,SanDiego,1"
,
"9.9,111,0.33,Hollywood,2"
,
"8.9,113,0.329,Compton,3"
,
"9.4,118,0.141,San Francisco,4"
]
def
__init__
(
self
,
tb_name_prefix
,
table_count
):
self
.
table_name_prefix
=
tb_name_prefix
+
"_"
self
.
table_count
=
table_count
self
.
max_rows
=
10000000
self
.
current_ts
=
round
(
time
.
time
()
*
1000
)
-
self
.
max_rows
*
100
# [(tableId, tableName, values),]
self
.
data
=
self
.
_init_data
()
def
_init_data
(
self
):
lines
=
self
.
samples
*
(
self
.
table_count
//
5
+
1
)
data
=
[]
for
i
in
range
(
self
.
table_count
):
table_name
=
self
.
table_name_prefix
+
str
(
i
)
data
.
append
((
i
,
table_name
,
lines
[
i
]))
# tableId, row
return
data
def
__iter__
(
self
):
self
.
row
=
0
return
self
def
__next__
(
self
):
"""
next 1000 rows for each table.
return: {tableId:[row,...]}
"""
# generate 1000 timestamps
ts
=
[]
for
_
in
range
(
1000
):
self
.
current_ts
+=
100
ts
.
append
(
str
(
self
.
current_ts
))
# add timestamp to each row
# [(tableId, ["tableName,ts,current,voltage,phase,location,groupId"])]
result
=
[]
for
table_id
,
table_name
,
values
in
self
.
data
:
rows
=
[
table_name
+
','
+
t
+
','
+
values
for
t
in
ts
]
result
.
append
((
table_id
,
rows
))
return
result
docs/examples/python/sql_writer.py
浏览文件 @
294946a2
...
@@ -18,6 +18,7 @@ class SQLWriter:
...
@@ -18,6 +18,7 @@ class SQLWriter:
name
=
r
[
0
]
name
=
r
[
0
]
if
name
==
"maxSQLLength"
:
if
name
==
"maxSQLLength"
:
return
int
(
r
[
1
])
return
int
(
r
[
1
])
return
1024
*
1024
def
process_lines
(
self
,
lines
:
str
):
def
process_lines
(
self
,
lines
:
str
):
"""
"""
...
@@ -71,11 +72,19 @@ class SQLWriter:
...
@@ -71,11 +72,19 @@ class SQLWriter:
if
error_code
==
0x362
or
error_code
==
0x218
:
if
error_code
==
0x362
or
error_code
==
0x218
:
self
.
create_tables
()
self
.
create_tables
()
else
:
else
:
self
.
log
.
error
(
"Execute SQL: %s"
,
sql
)
raise
e
raise
e
except
BaseException
as
baseException
:
self
.
log
.
error
(
"Execute SQL: %s"
,
sql
)
raise
baseException
def
create_tables
(
self
):
def
create_tables
(
self
):
sql
=
"CREATE TABLE "
sql
=
"CREATE TABLE "
for
tb
in
self
.
_tb_values
.
keys
():
for
tb
in
self
.
_tb_values
.
keys
():
tag_values
=
self
.
_tb_tags
[
tb
]
tag_values
=
self
.
_tb_tags
[
tb
]
sql
+=
"IF NOT EXISTS "
+
tb
+
" USING meters TAGS "
+
tag_values
+
" "
sql
+=
"IF NOT EXISTS "
+
tb
+
" USING meters TAGS "
+
tag_values
+
" "
try
:
self
.
_conn
.
execute
(
sql
)
self
.
_conn
.
execute
(
sql
)
except
BaseException
as
e
:
self
.
log
.
error
(
"Execute SQL: %s"
,
sql
)
raise
e
docs/examples/python/stmt_writer.py
0 → 100644
浏览文件 @
294946a2
class
StmtWriter
:
pass
docs/zh/07-develop/03-insert-data/05-high-volume.md
浏览文件 @
294946a2
---
import Tabs from "@theme/Tabs";
title
:
高效写入
import TabItem from "@theme/TabItem";
---
# 高效写入
本节介绍如何高效地向 TDengine 写入数据。
## 高效写入原理 {#principle}
## 高效写入原理 {#principle}
本节介绍如何高效地向 TDengine 写入数据。高效写入数据要考虑几个因素:数据在不同表(或子表)之间的分布,即要写入数据的相邻性;单次写入的数据量;并发连接数。一般来说,每批次只向同一张表(或子表)写入数据比向多张表(或子表)写入数据要更高效;每批次写入的数据量越大越高效(但超过一定阈值其优势会消失;同时写入数据的并发连接数越多写入越高效(但超过一定阈值反而会下降,取决于服务端处理能力)。
### 客户端程序的角度 {#application-view}
从客户端程序的角度来说,高效写入数据要考虑以下几个因素:
1.
单次写入的数据量。一般来讲,每批次写入的数据量越大越高效(但超过一定阈值其优势会消失)。使用 SQL 写入 TDengine 时,尽量在一条 SQL 中拼接更多数据。目前,TDengine 支持的一条 SQL 的最大长度为 1,048,576(1M)个字符。可通过配置客户端参数 maxSQLLength(默认值为 65480)进行修改。
2.
并发连接数。一般来讲,同时写入数据的并发连接数越多写入越高效(但超过一定阈值反而会下降,取决于服务端处理能力)。
3.
数据在不同表(或子表)之间的分布,即要写入数据的相邻性。一般来说,每批次只向同一张表(或子表)写入数据比向多张表(或子表)写入数据要更高效;
4.
写入方式。一般来讲:
-
参数绑定写入比 SQL 写入更高效。因参数绑定方式避免了 SQL 解析。(但增加了 C 接口的调用次数,对于连接器也有性能损耗)。
-
SQL 写入不自动建表比自动建表更高效。因自动建表要频繁检查表是否存在
-
SQL 写入比无模式写入更高效。因无模式写入会自动建表且支持动态更改表结构
客户端程序要充分且恰当地利用以上几个因素。在单次写入中尽量只向同一张表(或子表)写入数据,每批次写入的数据量经过测试和调优设定为一个最适合当前系统处理能力的数值,并发写入的连接数同样经过测试和调优后设定为一个最适合当前系统处理能力的数值,以实现在当前系统中的最佳写入速度。
### 数据源的角度 {#datasource-view}
客户端程序通常需要从数据源读数据再写入 TDengine。从数据源角度来说,以下几种情况需要在读线程和写线程之间增加队列:
1.
有多个数据源,单个数据源生成数据的速度远小于单线程写入的速度,但数据量整体比较大。此时队列的作用是把多个数据源的数据汇聚到一起,增加单次写入的数据量。
2.
单个数据源生成数据的速度远大于单线程写入的速度。此时队列的作用是增加写入的并发度。
3.
单张表的数据分散在多个数据源。此时队列的作用是将同一张表的数据提前汇聚到一起,提高写入时数据的相邻性。
如果写应用的数据源是 Kafka, 写应用本身即 Kafka 的消费者,则可利用 Kafka 的特性实现高效写入。比如:
1.
将同一张表的数据写到同一个 Topic 的同一个 Partition,增加数据的相邻性
2.
通过订阅多个 Topic 实现数据汇聚
3.
通过增加 Consumer 线程数增加写入的并发度
4.
通过增加每次 fetch 的最大数据量来增加单次写入的最大数据量
### 服务器配置的角度 {#setting-view}
为了更高效地向 TDengine 写入数据,客户端程序要充分且恰当地利用以上几个因素。在单次写入中尽量只向同一张表(或子表)写入数据,每批次写入的数据量经过测试和调优设定为一个最适合当前系统处理能力的数值,并发写入的连接数同样经过测试和调优后设定为一个最适合当前系统处理能力的数值,以实现在当前系统中的最佳写入速度。同时,TDengine 还提供了独特的参数绑定写入,这也是一个有助于实现高效写入
的方法。
从服务器配置的角度来说,也有很多优化写入性能
的方法。
为了使写入最高效,除了客户端程序的设计,服务端的配置也很重要。如果无论怎么调节客户端程序,taosd 进程的 CPU 使用率都很低,那很可能需要增加 vgroup 的数量。比如:数据库总表数是 1000 且 minTablesPerVnode 设置的也是 1000,那么这个数据至多有一个 vgroup。此时如果将 minTablesPerVnode 和 tablelncStepPerVnode 都设置成 100, 则这个数据库有可能用到 10 个 vgroup。更多性能调优参数请参考
[
配置参考
](
../../reference/config
)
性能调优部分
。
如果无论怎么调节客户端程序,taosd 进程的 CPU 使用率都很低,那很可能需要增加 vgroup 的数量。比如:数据库总表数是 1000 且 minTablesPerVnode 设置的也是 1000,那么这个数据至多有一个 vgroup。此时如果将 minTablesPerVnode 和 tablelncStepPerVnode 都设置成 100, 则这个数据库可能用到 10 个 vgroup
。
## 高效写入方案 {#scenario}
更多调优参数,请参考
[
性能优化
](
../../operation/optimize
)
和
[
配置参考
](
../../reference/config
)
部分。
下面的示例程序展示了如何高效写入数据:
## 高效写入示例 {#sample-code}
-
TDengine 客户端程序从消息队列或者其它数据源不断读入数据,在示例程序中采用生成模拟数据的方式来模拟读取数据源
### 场景设计 {#scenario}
下面的示例程序展示了如何高效写入数据,场景设计如下:
-
TDengine 客户端程序从其它数据源不断读入数据,在示例程序中采用生成模拟数据的方式来模拟读取数据源
-
单个连接向 TDengine 写入的速度无法与读数据的速度相匹配,因此客户端程序启动多个线程,每个线程都建立了与 TDengine 的连接,每个线程都有一个独占的固定大小的消息队列
-
单个连接向 TDengine 写入的速度无法与读数据的速度相匹配,因此客户端程序启动多个线程,每个线程都建立了与 TDengine 的连接,每个线程都有一个独占的固定大小的消息队列
-
客户端程序将接收到的数据根据所属的表名(或子表名)HASH 到不同的线程,即写入该线程所对应的消息队列,以此确保属于某个表(或子表)的数据一定会被一个固定的线程处理
-
客户端程序将接收到的数据根据所属的表名(或子表名)HASH 到不同的线程,即写入该线程所对应的消息队列,以此确保属于某个表(或子表)的数据一定会被一个固定的线程处理
-
各个子线程在将所关联的消息队列中的数据读空后或者读取数据量达到一个预定的阈值后将该批数据写入 TDengine,并继续处理后面接收到的数据
-
各个子线程在将所关联的消息队列中的数据读空后或者读取数据量达到一个预定的阈值后将该批数据写入 TDengine,并继续处理后面接收到的数据


### 示例代码 {#code}
这一部分是针对以上场景的示例代码。对于其它场景高效写入原理相同,不过代码需要适当修改。
本示例代码假设源数据属于同一张超级表(meters)的不同子表。程序在开始写入数据之前已经在 test 库创建了这个超级表。对于子表,将根据收到的数据,由应用程序自动创建。如果实际场景是多个超级表,只需修改写任务自动建表的代码。
:::note
<Tabs
defaultValue=
"java"
groupId=
"lang"
>
上图所示架构,每个写任务只负责写特定的表,体现了数据的相邻性原则。但是读任务所读的表,我们假设是随机的。这样一个队列有多个写入线程(或进程),队列内部可能产生锁的消耗。实际场景,如果能做到一个读任务对应一个写任务是最好的。
<TabItem
label=
"Java"
value=
"java"
>
:::
## Java 示例程序 {#java-demo}
**程序清单**
在 Java 示例程序中采用拼接 SQL 的写入方式。
| 类名 | 功能说明 |
| ---------------- | --------------------------------------------------------------------------- |
| FastWriteExample | 主程序 |
| ReadTask | 从模拟源中读取数据,将表名经过 hash 后得到 Queue 的 index,写入对应的 Queue |
| WriteTask | 从 Queue 中获取数据,组成一个 Batch,写入 TDengine |
| MockDataSource | 模拟生成一定数量 meters 子表的数据 |
| SQLWriter | WriteTask 依赖这个类完成 SQL 拼接、自动建表、 SQL 写入、SQL 长度检查 |
| StmtWriter | 实现参数绑定方式批量写入(暂未完成) |
| DataBaseMonitor | 统计写入速度,并每隔 10 秒把当前写入速度打印到控制台 |
### 主程序 {#java-demo-main}
以下是各类的完整代码和更详细的功能说明。
<details>
<summary>
FastWriteExample
</summary>
主程序负责:
主程序负责:
1.
创建消息队列
1.
创建消息队列
...
@@ -45,70 +97,80 @@ title: 高效写入
...
@@ -45,70 +97,80 @@ title: 高效写入
3.
模拟生成的总表数。默认为 1000。将会平分给各个读线程。
3.
模拟生成的总表数。默认为 1000。将会平分给各个读线程。
4.
每批最多写入记录数量。默认为 3000。
4.
每批最多写入记录数量。默认为 3000。
<details>
队列容量(taskQueueCapacity)也是与性能有关的参数,可通过修改程序调节。一般来讲,队列容量越大,入队被阻塞的概率越小,队列的吞吐量越大,但是内存占用也会越大。 示例程序默认值已经设置地足够大。
<summary>
主程序
</summary>
```
java
```
java
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
FastWriteExample
.
java
:
main
}}
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
FastWriteExample
.
java
}}
```
```
</details>
</details>
<details>
队列容量(taskQueueCapacity)也是与性能有关的参数,可通过修改程序调节。一般来讲,队列容量越大,入队被阻塞的概率越小,队列的吞吐量越大,但是内存占用也会越大。
<summary>
ReadTask
</summary>
### 读任务的实现 {#java-demo-read}
读任务负责从数据源读数据。每个读任务都关联了一个模拟数据源。每个模拟数据源可生成一点数量表的数据。不同的模拟数据源生成不同表的数据。
读任务负责从数据源读数据。每个读任务都关联了一个模拟数据源。每个模拟数据源可生成一点数量表的数据。不同的模拟数据源生成不同表的数据。
读任务采用阻塞的方式写消息队列。也就是说,一旦队列满了,写操作就会阻塞。
读任务采用阻塞的方式写消息队列。也就是说,一旦队列满了,写操作就会阻塞。
```
java
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
ReadTask
.
java
}}
```
</details>
<details>
<details>
<summary>
读任务的实现
</summary>
<summary>
WriteTask
</summary>
```
java
```
java
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
ReadTask
.
java
:
ReadTask
}}
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
WriteTask
.
java
}}
```
```
</details>
</details>
### 写任务的实现 {#java-demo-write}
<details>
<details>
<summary>
写任务的实现
</summary>
<summary>
MockDataSource
</summary>
```
java
```
java
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
WriteTask
.
java
:
WriteTask
}}
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
MockDataSource
.
java
}}
```
```
</details>
</details>
### SQLWriter 类的实现 {#java-demo-sql-writer}
<details>
SQLWriter 类封装了拼 SQL 和写数据的逻辑。注意,所有的表都没有提前创建,而是写入出错的时候,再以超级表为模板批量建表,然后重新执行 INSERT 语句。
<summary>
SQLWriter
</summary>
SQLWriter 类封装了拼 SQL 和写数据的逻辑。注意,所有的表都没有提前创建,而是在 catch 到表不存在异常的时候,再以超级表为模板批量建表,然后重新执行 INSERT 语句。对于其它异常,这里简单地记录当时执行的 SQL 语句到日志中,你也可以记录更多线索到日志,已便排查错误和故障恢复。
```
java
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
SQLWriter
.
java
}}
```
</details>
<details>
<details>
<summary>
SQLWriter 类的实现
</summary>
<summary>
DataBaseMonitor
</summary>
```
java
```
java
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
SQLWriter
.
java
:
SQLWriter
}}
{{
#
include
docs
/
examples
/
java
/
src
/
main
/
java
/
com
/
taos
/
example
/
highvolume
/
DataBaseMonitor
.
java
}}
```
```
</details>
</details>
### 执行示例程序 {#run-java-demo}
**执行步骤**
<details>
<details>
<summary>
执行 Java 示例程序
</summary>
<summary>
执行 Java 示例程序
</summary>
执行程序前需配置环境变量
`TDENGINE_JDBC_URL`
。如果 TDengine Server 部署在本机,且用户名、密码和端口都是默认值,那么可配置:
执行程序前需配置环境变量
`TDENGINE_JDBC_URL`
。如果 TDengine Server 部署在本机,且用户名、密码和端口都是默认值,那么可配置:
```
```
TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
```
```
#### 本地集成开发环境执行示例程序 {#java-demo-local-run}
**本地集成开发环境执行示例程序**
1.
clone TDengine 仓库
1.
clone TDengine 仓库
```
```
...
@@ -118,7 +180,7 @@ TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
...
@@ -118,7 +180,7 @@ TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
3.
在开发环境中配置环境变量
`TDENGINE_JDBC_URL`
。如果已配置了全局的环境变量
`TDENGINE_JDBC_URL`
可跳过这一步。
3.
在开发环境中配置环境变量
`TDENGINE_JDBC_URL`
。如果已配置了全局的环境变量
`TDENGINE_JDBC_URL`
可跳过这一步。
4.
运行类
`com.taos.example.highvolume.FastWriteExample`
。
4.
运行类
`com.taos.example.highvolume.FastWriteExample`
。
#### 远程服务器上执行示例程序 {#java-demo-remote-run}
**远程服务器上执行示例程序**
若要在服务器上执行示例程序,可按照下面的步骤操作:
若要在服务器上执行示例程序,可按照下面的步骤操作:
...
@@ -135,16 +197,17 @@ TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
...
@@ -135,16 +197,17 @@ TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
```
```
scp -r .\target\lib <user>@<host>:~/examples/java
scp -r .\target\lib <user>@<host>:~/examples/java
```
```
-
复制本程序的 jar 包,每次更新代码都需要复制
-
复制本程序的 jar 包,每次更新代码都需要复制
```
```
scp -r .\target\javaexample-1.0.jar <user>@<host>:~/examples/java
scp -r .\target\javaexample-1.0.jar <user>@<host>:~/examples/java
```
```
4.
配置环境变量。
4.
配置环境变量。
编辑
`~/.bash_profile`
或
`~/.bashrc`
添加如下内容例如:
编辑
`~/.bash_profile`
或
`~/.bashrc`
添加如下内容例如:
```
```
export TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
export TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
```
```
以上使用的是本地部署 TDengine Server 时默认的 JDBC URL。你需要根据自己的实际情况更改。
以上使用的是本地部署 TDengine Server 时默认的 JDBC URL。你需要根据自己的实际情况更改。
5.
用 java 命令启动示例程序,命令模板:
5.
用 java 命令启动示例程序,命令模板:
...
@@ -154,39 +217,70 @@ TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
...
@@ -154,39 +217,70 @@ TDENGINE_JDBC_URL="jdbc:TAOS://localhost:6030?user=root&password=taosdata"
```
```
6.
结束测试程序。测试程序不会自动结束,在获取到当前配置下稳定的写入速度后,按
<kbd>
CTRL
</kbd>
+
<kbd>
C
</kbd>
结束程序。
6.
结束测试程序。测试程序不会自动结束,在获取到当前配置下稳定的写入速度后,按
<kbd>
CTRL
</kbd>
+
<kbd>
C
</kbd>
结束程序。
下面是一次实际运行的
截图:
下面是一次实际运行的
日志输出,机器配置 16核 + 64G + 固态硬盘。
```
```
[testuser@vm95 java]$ java -classpath lib/*:javaexample-1.0.jar com.taos.example.highvolume.FastWriteExample 1 9 1000 2000
root@vm85$ java -classpath lib/*:javaexample-1.0.jar com.taos.example.highvolume.FastWriteExample 2 12
17:01:01.131 [main] INFO c.t.e.highvolume.FastWriteExample - readTaskCount=1, writeTaskCount=9 tableCount=1000 maxBatchSize=2000
18:56:35.896 [main] INFO c.t.e.highvolume.FastWriteExample - readTaskCount=2, writeTaskCount=12 tableCount=1000 maxBatchSize=3000
17:01:01.286 [WriteThread-0] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.011 [WriteThread-0] INFO c.taos.example.highvolume.WriteTask - started
17:01:01.354 [WriteThread-1] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.015 [WriteThread-0] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:01.360 [WriteThread-2] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.021 [WriteThread-1] INFO c.taos.example.highvolume.WriteTask - started
17:01:01.366 [WriteThread-3] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.022 [WriteThread-1] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:01.433 [WriteThread-4] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.031 [WriteThread-2] INFO c.taos.example.highvolume.WriteTask - started
17:01:01.438 [WriteThread-5] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.032 [WriteThread-2] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:01.443 [WriteThread-6] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.041 [WriteThread-3] INFO c.taos.example.highvolume.WriteTask - started
17:01:01.448 [WriteThread-7] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.042 [WriteThread-3] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:01.454 [WriteThread-8] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.093 [WriteThread-4] INFO c.taos.example.highvolume.WriteTask - started
17:01:01.454 [ReadThread-0] INFO com.taos.example.highvolume.ReadTask - started
18:56:36.094 [WriteThread-4] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:11.615 [main] INFO c.t.e.highvolume.FastWriteExample - count=18766442 speed=1876644
18:56:36.099 [WriteThread-5] INFO c.taos.example.highvolume.WriteTask - started
17:01:21.775 [main] INFO c.t.e.highvolume.FastWriteExample - count=38947464 speed=2018102
18:56:36.100 [WriteThread-5] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:32.428 [main] INFO c.t.e.highvolume.FastWriteExample - count=58649571 speed=1970210
18:56:36.100 [WriteThread-6] INFO c.taos.example.highvolume.WriteTask - started
17:01:42.577 [main] INFO c.t.e.highvolume.FastWriteExample - count=79264890 speed=2061531
18:56:36.101 [WriteThread-6] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:01:53.265 [main] INFO c.t.e.highvolume.FastWriteExample - count=99097476 speed=1983258
18:56:36.103 [WriteThread-7] INFO c.taos.example.highvolume.WriteTask - started
17:02:04.209 [main] INFO c.t.e.highvolume.FastWriteExample - count=119546779 speed=2044930
18:56:36.104 [WriteThread-7] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:02:14.935 [main] INFO c.t.e.highvolume.FastWriteExample - count=141078914 speed=2153213
18:56:36.105 [WriteThread-8] INFO c.taos.example.highvolume.WriteTask - started
17:02:25.617 [main] INFO c.t.e.highvolume.FastWriteExample - count=162183457 speed=2110454
18:56:36.107 [WriteThread-8] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
17:02:36.718 [main] INFO c.t.e.highvolume.FastWriteExample - count=182735614 speed=2055215
18:56:36.108 [WriteThread-9] INFO c.taos.example.highvolume.WriteTask - started
17:02:46.988 [main] INFO c.t.e.highvolume.FastWriteExample - count=202895614 speed=2016000
18:56:36.109 [WriteThread-9] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
18:56:36.156 [WriteThread-10] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.157 [WriteThread-11] INFO c.taos.example.highvolume.WriteTask - started
18:56:36.158 [WriteThread-10] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
18:56:36.158 [ReadThread-0] INFO com.taos.example.highvolume.ReadTask - started
18:56:36.158 [ReadThread-1] INFO com.taos.example.highvolume.ReadTask - started
18:56:36.158 [WriteThread-11] INFO c.taos.example.highvolume.SQLWriter - maxSQLLength=1048576
18:56:46.369 [main] INFO c.t.e.highvolume.FastWriteExample - count=18554448 speed=1855444
18:56:56.946 [main] INFO c.t.e.highvolume.FastWriteExample - count=39059660 speed=2050521
18:57:07.322 [main] INFO c.t.e.highvolume.FastWriteExample - count=59403604 speed=2034394
18:57:18.032 [main] INFO c.t.e.highvolume.FastWriteExample - count=80262938 speed=2085933
18:57:28.432 [main] INFO c.t.e.highvolume.FastWriteExample - count=101139906 speed=2087696
18:57:38.921 [main] INFO c.t.e.highvolume.FastWriteExample - count=121807202 speed=2066729
18:57:49.375 [main] INFO c.t.e.highvolume.FastWriteExample - count=142952417 speed=2114521
18:58:00.689 [main] INFO c.t.e.highvolume.FastWriteExample - count=163650306 speed=2069788
18:58:11.646 [main] INFO c.t.e.highvolume.FastWriteExample - count=185019808 speed=2136950
```
```
</details>
</details>
## Python 示例程序 {#python-demo}
</TabItem>
<TabItem
label=
"Python"
value=
"python"
>
**程序清单**
Python 示例程序中采用了多进程的架构,并使用了跨进程的消息队列。
该 Python 示例程序中采用了多进程的架构,并使用了跨进程的队列通信。写任务采用拼装 SQL 的方式写入。
| 函数或类 | 功能说明 |
### main 函数 {#python-demo-main}
| ------------------------ | -------------------------------------------------------------------- |
| main 函数 | 程序入口, 创建各个子进程和消息队列 |
| run_monitor_process 函数 | 创建数据库,超级表,统计写入速度并定时打印到控制台 |
| run_read_task 函数 | 读进程主要逻辑,负责从其它数据系统读数据,并分发数据到为之分配的队列 |
| MockDataSource 类 | 模拟数据源, 实现迭代器接口,每次批量返回每张表的接下来 1000 条数据 |
| run_write_task 函数 | 写进程主要逻辑。每次从队列中取出尽量多的数据,并批量写入 |
| SQLWriter类 | SQL 写入和自动建表 |
| StmtWriter 类 | 实现参数绑定方式批量写入(暂未完成) |
<details>
<summary>
main 函数
</summary>
main 函数负责创建消息队列和启动子进程,子进程有 3 类:
main 函数负责创建消息队列和启动子进程,子进程有 3 类:
...
@@ -202,76 +296,62 @@ main 函数可以接收 5 个启动参数,依次是:
...
@@ -202,76 +296,62 @@ main 函数可以接收 5 个启动参数,依次是:
4.
队列大小(单位字节),默认为 1000000
4.
队列大小(单位字节),默认为 1000000
5.
每批最多写入记录数量, 默认为 3000
5.
每批最多写入记录数量, 默认为 3000
<details>
<summary>
main 函数
</summary>
```
python
```
python
{{
#include docs/examples/python/
highvolume_faster_queu
e.py:main}}
{{
#include docs/examples/python/
fast_write_exampl
e.py:main}}
```
```
</details>
</details>
### 监控进程
<details>
<summary>
run_monitor_process
</summary>
监控进程负责初始化数据库,并监控当前的写入速度。
监控进程负责初始化数据库,并监控当前的写入速度。
<details>
<summary>
Monitor Process
</summary>
```
python
```
python
{{
#include docs/examples/python/
highvolume_faster_queu
e.py:monitor}}
{{
#include docs/examples/python/
fast_write_exampl
e.py:monitor}}
```
```
</details>
</details>
### 读进程 {#python-read-process}
#### 读进程主要逻辑 {#python-run-read-task}
读进程,负责从其它数据系统读数据,并分发数据到各个写进程。
<details>
<details>
<summary>
run_read_task 函数
</summary>
<summary>
run_read_task 函数
</summary>
读进程,负责从其它数据系统读数据,并分发数据到为之分配的队列。
```
python
```
python
{{
#include docs/examples/python/
highvolume_faster_queu
e.py:read}}
{{
#include docs/examples/python/
fast_write_exampl
e.py:read}}
```
```
</details>
</details>
#### 模拟数据源 {#python-mock-data-source}
以下是模拟数据源的实现,我们假设数据源生成的每一条数据都带有目标表名信息。实际中你可能需要一定的规则确定目标表名。
<details>
<details>
<summary>
MockDataSource
</summary>
<summary>
MockDataSource
</summary>
以下是模拟数据源的实现,我们假设数据源生成的每一条数据都带有目标表名信息。实际中你可能需要一定的规则确定目标表名。
```
python
```
python
{{
#include docs/examples/python/
highvolume_faster_queue.py:MockDataSource
}}
{{
#include docs/examples/python/
mockdatasource.py
}}
```
```
</details>
</details>
### 写进程 {#python-write-process}
写进程每次从队列中取出尽量多的数据,并批量写入。
<details>
<details>
<summary>
run_write_task 函数
</summary>
<summary>
run_write_task 函数
</summary>
写进程每次从队列中取出尽量多的数据,并批量写入。
```
python
```
python
{{
#include docs/examples/python/
highvolume_faster_queu
e.py:write}}
{{
#include docs/examples/python/
fast_write_exampl
e.py:write}}
```
```
</details>
### SQLWriter 类的实现 {#python-sql-writer}
</details>
SQLWriter 类封装了拼 SQL 和写数据的逻辑。所有的表都没有提前创建,而是写入出错的时候,再以超级表为模板批量建表,然后重新执行 INSERT 语句。这个类也对 SQL 是否超过最大长度限制做了检查,如果接近 SQL 最大长度限制(maxSQLLength),将会立即执行 SQL。为了减少 SQL 执行次数,建议将 maxSQLLength 适当调大。
<details>
<details>
SQLWriter 类封装了拼 SQL 和写数据的逻辑。所有的表都没有提前创建,而是在发生表不存在错误的时候,再以超级表为模板批量建表,然后重新执行 INSERT 语句。对于其它错误会记录当时执行的 SQL, 以便排查错误和故障恢复。这个类也对 SQL 是否超过最大长度限制做了检查,如果接近 SQL 最大长度限制(maxSQLLength),将会立即执行 SQL。为了减少 SQL 此时,建议将 maxSQLLength 适当调大。
<summary>
SQLWriter
</summary>
<summary>
SQLWriter
</summary>
```
python
```
python
...
@@ -280,62 +360,73 @@ SQLWriter 类封装了拼 SQL 和写数据的逻辑。所有的表都没有提
...
@@ -280,62 +360,73 @@ SQLWriter 类封装了拼 SQL 和写数据的逻辑。所有的表都没有提
</details>
</details>
### 执行示例程序 {#run-python-demo}
**执行步骤**
<details>
<details>
<summary>
执行 Python 示例程序
</summary>
<summary>
执行 Python 示例程序
</summary>
1.
前提条件
1.
前提条件
-
已安装 TDengine 客户端驱动
-
已安装 TDengine 客户端驱动
-
已安装 Python3, 推荐版本 >= 3.8
-
已安装 Python3, 推荐版本 >= 3.8
-
已安装 taospy
-
已安装 taospy
2.
安装 faster-fifo 代替 python 内置的 multiprocessing.Queue
2.
安装 faster-fifo 代替 python 内置的 multiprocessing.Queue
```
```
pip3 install faster-fifo
pip3 install faster-fifo
```
```
3.
点击上面的“查看源码”链接复制
`
highvolume_faster_queue.py`
和
`sql_writer.py`
两
个文件。
3.
点击上面的“查看源码”链接复制
`
fast_write_example.py`
、
`sql_writer.py`
和
`mockdatasource.py`
三
个文件。
4.
执行示例程序
4.
执行示例程序
```
```
python3
highvolume_faster_queu
e.py <READ_TASK_COUNT> <WRITE_TASK_COUNT> <TABLE_COUNT> <QUEUE_SIZE> <MAX_BATCH_SIZE>
python3
fast_write_exampl
e.py <READ_TASK_COUNT> <WRITE_TASK_COUNT> <TABLE_COUNT> <QUEUE_SIZE> <MAX_BATCH_SIZE>
```
```
下面是一次实际运行的输出:
下面是一次实际运行的输出, 机器配置 16核 + 64G + 固态硬盘。
```
```
[testuser@vm95 python]$ python3.6 highvolume_faster_queue.py 9 9 1000 5000000 3000
root@vm85$ python3 fast_write_example.py 8 8
2022-07-13 10:05:50,504 [root] - READ_TASK_COUNT=9, WRITE_TASK_COUNT=9, TABLE_COUNT=1000, QUEUE_SIZE=5000000, MAX_BATCH_SIZE=3000
2022-07-14 19:13:45,869 [root] - READ_TASK_COUNT=8, WRITE_TASK_COUNT=8, TABLE_COUNT=1000, QUEUE_SIZE=1000000, MAX_BATCH_SIZE=3000
2022-07-13 10:05:53,542 [root] - WriteTask-0 started with pid 5475
2022-07-14 19:13:48,882 [root] - WriteTask-0 started with pid 718347
2022-07-13 10:05:53,542 [root] - WriteTask-1 started with pid 5476
2022-07-14 19:13:48,883 [root] - WriteTask-1 started with pid 718348
2022-07-13 10:05:53,543 [root] - WriteTask-2 started with pid 5477
2022-07-14 19:13:48,884 [root] - WriteTask-2 started with pid 718349
2022-07-13 10:05:53,543 [root] - WriteTask-3 started with pid 5478
2022-07-14 19:13:48,884 [root] - WriteTask-3 started with pid 718350
2022-07-13 10:05:53,544 [root] - WriteTask-4 started with pid 5479
2022-07-14 19:13:48,885 [root] - WriteTask-4 started with pid 718351
2022-07-13 10:05:53,544 [root] - WriteTask-5 started with pid 5480
2022-07-14 19:13:48,885 [root] - WriteTask-5 started with pid 718352
2022-07-13 10:05:53,545 [root] - WriteTask-6 started with pid 5481
2022-07-14 19:13:48,886 [root] - WriteTask-6 started with pid 718353
2022-07-13 10:05:53,546 [root] - WriteTask-7 started with pid 5482
2022-07-14 19:13:48,886 [root] - WriteTask-7 started with pid 718354
2022-07-13 10:05:53,546 [root] - WriteTask-8 started with pid 5483
2022-07-14 19:13:48,887 [root] - ReadTask-0 started with pid 718355
2022-07-13 10:05:53,547 [root] - ReadTask-0 started with pid 5484
2022-07-14 19:13:48,888 [root] - ReadTask-1 started with pid 718356
2022-07-13 10:05:53,548 [root] - ReadTask-1 started with pid 5485
2022-07-14 19:13:48,889 [root] - ReadTask-2 started with pid 718357
2022-07-13 10:05:53,549 [root] - ReadTask-2 started with pid 5486
2022-07-14 19:13:48,889 [root] - ReadTask-3 started with pid 718358
2022-07-13 10:05:53,550 [root] - ReadTask-3 started with pid 5487
2022-07-14 19:13:48,890 [root] - ReadTask-4 started with pid 718359
2022-07-13 10:05:53,551 [root] - ReadTask-4 started with pid 5488
2022-07-14 19:13:48,891 [root] - ReadTask-5 started with pid 718361
2022-07-13 10:05:53,552 [root] - ReadTask-5 started with pid 5489
2022-07-14 19:13:48,892 [root] - ReadTask-6 started with pid 718364
2022-07-13 10:05:53,552 [root] - ReadTask-6 started with pid 5490
2022-07-14 19:13:48,893 [root] - ReadTask-7 started with pid 718365
2022-07-13 10:05:53,553 [root] - ReadTask-7 started with pid 5491
2022-07-14 19:13:56,042 [DataBaseMonitor] - count=6676310 speed=667631.0
2022-07-13 10:05:53,554 [root] - ReadTask-8 started with pid 5492
2022-07-14 19:14:06,196 [DataBaseMonitor] - count=20004310 speed=1332800.0
2022-07-13 10:06:00,842 [DataBaseMonitor] - count=6612939 speed=661293.9
2022-07-14 19:14:16,366 [DataBaseMonitor] - count=32290310 speed=1228600.0
2022-07-13 10:06:11,151 [DataBaseMonitor] - count=14765739 speed=815280.0
2022-07-14 19:14:26,527 [DataBaseMonitor] - count=44438310 speed=1214800.0
2022-07-13 10:06:21,677 [DataBaseMonitor] - count=23282163 speed=851642.4
2022-07-14 19:14:36,673 [DataBaseMonitor] - count=56608310 speed=1217000.0
2022-07-13 10:06:31,985 [DataBaseMonitor] - count=31673139 speed=839097.6
2022-07-14 19:14:46,834 [DataBaseMonitor] - count=68757310 speed=1214900.0
2022-07-13 10:06:42,343 [DataBaseMonitor] - count=39819439 speed=814630.0
2022-07-14 19:14:57,280 [DataBaseMonitor] - count=80992310 speed=1223500.0
2022-07-13 10:06:52,830 [DataBaseMonitor] - count=48146339 speed=832690.0
2022-07-14 19:15:07,689 [DataBaseMonitor] - count=93805310 speed=1281300.0
2022-07-13 10:07:03,396 [DataBaseMonitor] - count=56385039 speed=823870.0
2022-07-14 19:15:18,020 [DataBaseMonitor] - count=106111310 speed=1230600.0
2022-07-13 10:07:14,341 [DataBaseMonitor] - count=64848739 speed=846370.0
2022-07-14 19:15:28,356 [DataBaseMonitor] - count=118394310 speed=1228300.0
2022-07-13 10:07:24,877 [DataBaseMonitor] - count=73654566 speed=880582.7
2022-07-14 19:15:38,690 [DataBaseMonitor] - count=130742310 speed=1234800.0
```
2022-07-14 19:15:49,000 [DataBaseMonitor] - count=143051310 speed=1230900.0
2022-07-14 19:15:59,323 [DataBaseMonitor] - count=155276310 speed=1222500.0
2022-07-14 19:16:09,649 [DataBaseMonitor] - count=167603310 speed=1232700.0
2022-07-14 19:16:19,995 [DataBaseMonitor] - count=179976310 speed=1237300.0
```
</details>
</details>
</TabItem>
</Tabs>
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